Acceleration on the Growth of Rubber Planting Materials by Using Foliar Application of Humic Acid

Cahyo, Andi Nur; Ardika, Risal; Saputra, Jamin; Wijaya, Thomas

doi:10.17503/agrivita-2014-36-2-p112-119

Cited by 5 publications

(7 citation statements)

References 23 publications

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“…Wasson et al (2012) remarked that a root system with greater FRLD in deeper soil could uptake water and nutrients at high efficiency. Cahyo et al (2014) reported that root growth and performance were more obvious than other vegetative parts under the HSA. It could serve as auxin and promote cell enlargement by stimulating the cell wall loosening leading to greater vegetative growth (Jindo et al, 2012).…”

Section: Development Of the Fine Root Traitsmentioning

confidence: 99%

“…It enhances microbial activities and a population that transform insoluble mineral nutrients into available nutrient form for plant in the soil, thus higher soil nutrient content (Li et al, 2019). In humic acid-treated soil, pH buffering capacity, organic matter, and cation exchange capacity were improved with more significant soil physical properties resulting in enhanced root performances like fine root proliferation and nutrient uptake (Buyukkeskin et al, 2015;Cahyo et al, 2014). It was reported that the growth rates of nursery and immature rubber plants were enhanced by reducing chemical fertilizer usages and supplementing a humic acid application (Dharmakeerthi et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

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Complementarity in Rubber-Salacca Intercropping System under Integrated Fertilization Mixed with Organic Soil Amendments

Zaw¹,

Chiarawipa²,

Pechkeo³

et al. 2022

JTAS

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The replanting practice of rubber monocropping in Southern Thailand has depleted soil fertility. Most rubber planted areas in the region were under intensive chemical fertilization resulting in less soil organic matters and root proliferation. With the instability of rubber prices, some rubber farmers converted from monocropping into intercropping. Integrated fertilization in which mixed organic-inorganic fertilizers are combined with organic soil amendments could be considered in a rubber-based intercropping system to increase land productivity with cost-saving fertilization by rehabilitating soil properties. A study was conducted at a rubber-salacca intercropping farm comprised of 14-year-old mature rubber trees associated with eight-year-old salacca palms to identify the consequences of the integrated fertilization combined with two organic soil amendments: humic acid (HSA); chitosan (CSA). Changes in soil organic matter (SOM), leaf area index (LAI), fine root traits, tree physiological status, and crop productions under the two integrated fertilization were compared against the controlled application of conventional chemical fertilizer. The CSA application increased the SOM in the topsoil layer by 80%. In the 21 – 40 cm soil depth, the rubber roots treated with HSA and the salacca palm roots treated with CSA showed greater fine root length density (FRLD). Under CSA, the physiological status of the rubber trees showed less stress. The treatments of HSA and CSA showed 145% and 72%, respectively, higher in total production of salacca palm than that of the chemical fertilization. Improvements in the soil fertility, the root’s function, the crops’ yields, and the tree physiological status were consequences as complementarity in the system under the integrated fertilizations.

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Section: Development Of the Fine Root Traitsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Complementarity in Rubber-Salacca Intercropping System under Integrated Fertilization Mixed with Organic Soil Amendments

Zaw¹,

Chiarawipa²,

Pechkeo³

et al. 2022

JTAS

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“…Sedangkan secara langsung asam humat terlibat dalam proses metabolisme dalam tanaman seperti meningkatkan respirasi akar, sintesis protein, dan asam nukleat (Piccolo et al, 1992). Pengaruh pemberian asam humat pada pembibitan tanaman karet sudah dilaporkan oleh Cahyo et al (2014), tetapi belum diketahui pengaruh pemberian asam humat terhadap peningkatan efektivitas pemupukan anorganik tunggal. Penelitian ini bertujuan untuk mengetahui peningkatan efektivitas pemupukan anorganik tunggal dengan pemberian asam humat pada pembibitan tanaman karet dalam polibag.…”

Section: Pendahuluanunclassified

“…juga melaporkan adanya peningkatan produktivitas tanaman jagung pada pemberian asam humat tanpa pemupukan anorganik yang tidak signifikan atau dengan peningkatan hanya sebesar 3,5% dibandingkan tanpa pemupukan. Pertumbuhan tinggi tanaman, diameter batang, bobot akar, bobot tanaman, dan kandungan hara NPK daun bibit tanaman karet pada pemberian asam humat yang tidak meningkat secara signifikan juga sudah dilaporkan olehCahyo et al (2014) tetapi dengan cara penyemprotan melalui daun. Prosiding Seminar Nasional Pembangunan dan Pendidikan Vokasi Pertanian Politeknik Pembangunan Pertanian Manokwari, 23 Juli 2022 e ISSN : 2774-1982 DOI : https://doi.org/10.47687/snppvp.v3i1.344 666KESIMPULAN DAN SARANPemberian asam humat dapat meningkatkan efektivitas pemupukan tunggal dengan mengurangi dosis hingga 50% yang ditunjukkan dengan pertumbuhan tinggi tanaman, diameter batang, bobot akar (basah dan kering), dan bobot tanaman (basah dan kering) yang tidak berbeda nyata terhadap perlakuan pupuk tunggal dosis 100%.…”

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Peningkatan Efektivitas Pupuk Anorganik Tunggal dengan Pemberian Asam Humat di Pembibitan Tanaman Karet

Putra¹,

Pamungkas²

2022

snppvp

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Salah satu permasalahan pemupukan anorganik tunggal pada pembibitan tanaman karet yang sering ditemui di lapangan adalah tingkat efektivitasnya yang rendah. Efektivitas pemupukan anorganik dapat ditingkatkan dengan pemberian bahan pembenah tanah organik seperti asam humat. Penelitian ini bertujuan untuk mengetahui peningkatan efektivitas pemupukan anorganik tunggal dengan pemberian asam humat pada pembibitan tanaman karet dalam polibag. Penelitian dilaksanakan di kebun percobaan Unit Riset Bogor-Getas, Pusat Penelitian Karet yang berlokasi di Salatiga pada bulan April sampai September 2021. Rancangan percobaan yang digunakan adalah Rancangan Acak Lengkap (RAL) yang terdiri atas 7 perlakuan dengan 5 ulangan. Perlakuan pada penelitian ini adalah kontrol tanpa pemupukan, pupuk tunggal dosis 100%, dan kombinasi asam humat dengan pupuk tunggal (dosis 0%, 25%, 50%, 75%, 100%). Penambahan asam humat dapat mengurangi 50% dosis pupuk tunggal dengan pertumbuhan tinggi tanaman, diameter batang, bobot tanaman, dan bobot akar yang lebih tinggi dibandingkan kontrol tanpa pemupukan dan tidak berbeda nyata terhadap pupuk tunggal dosis 100%. Efektivitas agronomi relatif tertinggi diperoleh pada perlakuan asam humat dengan pupuk tunggal dosis 75% (RAE 131%). Pemberian asam humat dengan pupuk tunggal dosis 50% juga sudah menunjukkan efektivitas agronomi relatif yang lebih tinggi 7% dibandingkan pupuk tunggal dosis 100%. Berdasarkan hasil-hasil tersebut, asam humat dapat digunakan untuk meningkatkan pertumbuhan pada pembibitan tanaman karet dengan mengurangi dosis pupuk anorganik tunggal hingga 50%.

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“…It is well known that rhizosphere bacteria [ 10 , 11 , 12 ], as well as humic substances [ 13 , 14 , 15 ], stimulate plant growth when used individually. Although much less is known about their effect on trees than on herbaceous plants, it has been found that both humates [ 16 , 17 ] and rhizosphere bacteria [ 18 , 19 ] enhance the growth of woody plants. However, only a few studies have addressed the simultaneous application of these biostimulants.…”

Section: Introductionmentioning

confidence: 99%

Improving Tree Seedling Quality Using Humates Combined with Bacteria to Address Decarbonization Challenges through Forest Restoration

Nazarov,

Chetverikov,

Timergalin

et al. 2024

Plants

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Improving the quality of tree planting material for carbon sequestration through reforestation can help solve environmental problems, including the need to reduce the concentration of carbon dioxide in the atmosphere. The purpose of this study was to investigate the possibility of using humic substances in combination with rhizosphere microorganisms Pseudomonas protegens DA1.2 and Pseudomonas sp. 4CH as a means to stimulate the growth of seedlings of pine, poplar, large-leaved linden, red oak, horse chestnut, and rowan. Humic substances stimulated the growth of shoots and roots of pine, large-leaved linden, and horse chestnut seedlings. The effects of bacteria depended on both plant and bacteria species: Pseudomonas protegens DA1.2 showed a higher stimulatory effect than Pseudomonas sp. 4CH on pine and linden, and Pseudomonas sp. 4CH was more effective in the case of chestnut. An additive effect of humates and Pseudomonas protegens DA1.2 on the growth rate of pine and linden saplings was discovered. Poplar, red oak, and rowan seedlings were unresponsive to the treatments. The growth-stimulating effects of the treatments are discussed in connection with the changes in carbon, chlorophyll, and nitrogen contents in plants. The results show the need for further research in bacterial species capable of stimulating the growth of plant species that were unresponsive in the present experiments.

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Acceleration on the Growth of Rubber Planting Materials by Using Foliar Application of Humic Acid

Cited by 5 publications

References 23 publications

Complementarity in Rubber-Salacca Intercropping System under Integrated Fertilization Mixed with Organic Soil Amendments

Complementarity in Rubber-Salacca Intercropping System under Integrated Fertilization Mixed with Organic Soil Amendments

Peningkatan Efektivitas Pupuk Anorganik Tunggal dengan Pemberian Asam Humat di Pembibitan Tanaman Karet

Improving Tree Seedling Quality Using Humates Combined with Bacteria to Address Decarbonization Challenges through Forest Restoration

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